Alberta Environment and HAZMAT crews were also on scene. Alberta Transportation and Alberta Environment were called out and continue recovery efforts with other agencies on scene.

Parts of Highway 831 were blocked, or reduced to one lane of alternating traffic on Tuesday.

“At this time cleanup is continuing with only one lane open to alternating traffic,” said Cst. Alex Ayres. “Motorists are asked to slow down and exercise caution when passing work crews and Boyle ITU is on scene and will be proactively enforcing traffic laws in the area.”

Boyle RCMP continue to investigate.

At this time, alcohol and weather are not believed to be factors, but investigators have not ruled out other factors including mechanical failure or driver error.